Vision enhancement apparatus to improve both near and far vision

ABSTRACT

An apparatus to improve vision has a collimator of static cling vinyl affixed on a lens of eyeglasses by electrostatic attraction. The eyeglasses have a lens and the lens has a length and a width. The collimator is made of opaque material and the collimator has an aperture formed as a hole in a flat circle of the opaque material. The opaque material has a diameter and the diameter is less than the length and the diameter is less than the width of the lens of the eyeglasses. The eyeglasses are to be worn by a person. The collimator clears the vision of a person wearing the eyeglasses. When the person sights a firearm and sights through the aperture that person can simultaneously visualize the rear sight and the front sight of the firearm, and also the target.

RELATED APPLICATION

This application is a divisional application of U.S. patent applicationSer. No. 11/500,701, filed on Aug. 8, 2006, now issued as U.S. Pat. No.7,886,477 on Feb. 15, 2011 entitled VISION ENHANCEMENT APPARATUS TOIMPROVE BOTH NEAR AND FAR VISION, by Charles L. Summers, which is herebyincorporated by reference.

FIELD OF THE INVENTION

This invention relates to vision enhancement apparatus, and inparticular to simultaneous improvement of both near and far vision. Forexample, the vision enhancement is applicable to improved sighting offirearms, where it is important for a person aiming firearms tosimultaneously visualize a rear sight, a front sight, and the target.The rear sight is in the person's near vision, the front sight is in theperson's intermediate vision, and the target is in the person's farvision. A person who is either near-sighted or far-sighted is greatlyhelped by the simplicity of the present invention.

BACKGROUND OF THE INVENTION

Many ideas have been applied to solve the problem of a person withimpaired vision, such as either near-sightedness or far-sightedness, toaim a firearm. Aiming, for example, a rifle equipped with open sightsrequires that the person simultaneously visualize a rear sight, a frontsight, and the target. The rear sight may be an open iron sight at about12 inches to 18 inches from the person's eye. The front sight is anotherapproximately 2 to 3 feet further away, near the muzzle of the rifle.The target is at optical infinity, perhaps a few hundred feet to severalthousand yards away. A person who cannot properly accommodate the lensof his/her eye to focus simultaneously to the rear sight, the frontsight, and the target is unable to accurately aim the rifle.

For example, telescopes have been adapted as sighting devices forrifles. The telescope receives light rays at its objective lens whichhave been reflected by the target. The path of the light rays isappropriately modified by lenses of the telescope, and exit from theeyepiece of the telescope. The person adjusts the focus of the telescopeso that he can simultaneously visualize both a cross hair located in thetelescope and the target. The telescope is aligned with the rifle sothat when the cross hair appears to coincide with the target, the flightof the bullet will follow a substantially Galilean trajectory (allowancebeing made for air resistance) and strike the target at the spotindicated by the intersection of the cross hairs. However, a telescopeis a complicated attachment to a rifle, and so does not solve theproblem of using open sights by a person who is unable to simultaneouslyvisualize a rear open sight, a front sight, and the target. Further,telescope sights are expensive, and when a person owns several rifles,the cost of a telescope sight for each becomes prohibitive.

Peep hole sights have been tried as solutions to the problem ofsimultaneous visualization of a rear sight, a front sight, and a targetfor aiming a rifle. A typical prior art peep hole sight is shown inFIG. 1. A small hole 2 in a metal plate 4 is positioned to serve as arear sight. A small hole used as a sight is often referred to as a “peephole sight”. A peep hole sight as shown in FIG. 1 is often referred toas a tang-mounted peep hole sight.

A suction cup has been used to attach a peep hole sight to eyeglasses,as shown in FIG. 2A and FIG. 2B. Both transparent (shown in FIGS. 2A and2B) and opaque (not shown) suction cups have been used. The suction cupsrefract light and are very distracting to the person trying to aim thefirearm. Suction cup 3 adheres to lens of eyeglasses 7 by atmosphericpressure pressing to fill a vacuum between suction cup 3 and lens ofeyeglasses 7. Peep hole sight 9 is held onto eyeglasses by suction cup3, and ultimately by atmospheric pressure holding suction cup 3 ontolens of eyeglasses 7. Peep hole sight 9 has a portion 5 which surroundsa portion of suction cup 3, and so binds the peep hole sight 9 to thesuction cup 3.

Vision impaired individuals are assisted in driving an automobile byattachment of a small telescope 13 to ordinary eyeglasses, as shown inFIG. 3A, and the small telescope may be called a “BIOptic”. FIG. 3Bshows a group of fitting apertures used in preparing a BIOptic for apatient. The numbers 14, 16, 19, 22, 24, 27, and 33 beside the aperturesindicate the diameter of the apertures. Placement of the fittingaperture on eyeglasses is shown in FIG. 3C. Fitting a BIOptic to apatient is shown in FIG. 3G and FIG. 3H, including the use of aprotractor with a fitting aperture to measure a mounting angle for aBIOptic.

When a firearm is equipped with open sights, such as a “notch” type rearsight and a “post” type front sight, a person who is either near-sightedor far-sighted has difficulty, and often finds it impossible, tovisualize both the rear sight and the front sight, along with theintended target. Accordingly, the person has great difficulty in aimingthe firearm.

The problem of a person with impaired vision, such as eithernear-sightedness or far-sightedness, to aim a firearm equipped with opensights has not been solved.

SUMMARY OF THE INVENTION

A small aperture in an opaque material is attached to a pair of glassesworn by the person aiming a firearm. The small aperture collimates thelight reflected from the rear sight, the front sight, and the target sothat the light from each passes through only a small area of the lens ofthe person's eye on its way the person's retina. The opaque material isspoken of as a collimator, and the light is collimated by the aperture.Accordingly, only a small area of the person's lens, and then retina, isilluminated by a cone of light rays passing through the aperture.Accordingly, all of the light is rendered into focus on the person'sretina. The person can then see all three, the rear sight, the frontsight, and the target together. The person can then accurately aim thefirearm.

The aperture may be conveniently formed in a circular piece of opaquestatic cling vinyl. The aperture may have a size range of one to one anda half millimeters. The diameter of the circular piece of opaque staticcling vinyl may be conveniently around 15 to 20 millimeters (about ¾inch). Static cling vinyl has an electrostatic property that causes itto be electrically attracted to many materials, especially materialswhich eyeglasses are made of.

The glasses worn by the person may be ordinary vision correctionglasses, may be made of polycarbonate such as used in prescriptionsafety eyeglasses, may be bifocals with visible lines between differentradii ground into the glasses, may be blended lens bifocals, may besafety glasses such as the sort which people firing a firearm wear formechanical protection of their eyes, may be ordinary sunglasses, etc.

BRIEF DESCRIPTION OF THE DRAWINGS

Turning now to the Drawings, in which like numerals indicate like partsin the several drawings:

FIG. 1 is a tang-mounted peep sight of prior art.

FIG. 2A is a suction cup attachment of prior art.

FIG. 2B is a close up of the suction cup of FIG. 2A.

FIG. 3A . . . 3H is a BIOptic attachment for eyeglasses, with acentering method for a telescope attached to eyeglasses of prior art.

FIG. 4 is side view of the invention.

FIG. 5A is a front view of use of the invention.

FIG. 5B is a front view of a rear sight.

FIG. 6 is a close up view of use of the invention.

FIG. 7A is a view of firearm rear sight, front sight, and a target by aperson using the invention.

FIG. 7B is a view of firearm sights and target by a person withnear-sighted vision, and without the invention.

FIG. 7C is a view of firearm sights and target by a person withfar-sighted vision, and without the invention.

FIG. 8 is a view of two samples of the invention and a carrying case.

FIG. 9 is a front view of the invention showing section A-A′.

FIG. 10 is a sectional view of the invention along section A-A′.

FIG. 11A is a front view of an alternative embodiment of the inventionshowing section B-B′.

FIG. 11B is a sectional view along section B-B′.

FIG. 12A is front view of an alternative embodiment of the invention,including an optical filter, and showing section C-C′.

FIG. 12B is a sectional view along section C-C′.

FIG. 13 is a sectional view, looking down, of an alternative embodimentof the invention with an off-center aperture, the section taken alongsection D-D′.

FIG. 14 is a front view of an alternative embodiment of the inventionwith an off-center aperture, and showing section D-D′.

FIG. 15 illustrates use of the invention in aiming a handgun.

FIG. 16 is a side view of a handgun.

FIG. 17 is an enlarged view of a rear sight of a handgun.

DETAILED DESCRIPTION

Turning now to FIG. 4, a side view schematic diagram of use of theinvention is shown. A firearm barrel 10 has a rear open iron sight 20and a post front sight 30. It is intended to aim the firearm with barrel10 at target 40. The inventive optical device 50, hereinafter referredto as an “Eye Pal”, is attached to a front surface 60 of a lens 65 ofeyeglasses worn by a person (not shown) aiming the firearm at target 40.The mark “Eye Pal” is a registered trademark, Registration No.3,542,503, of Resident Artist Studio, LLC of Boxborough, Mass. Theperson's eye 70 has the pupil 75 aligned along sight line 80 (indicatedby a dashed line) through an aperture 55 of the Eye Pal 50. Also, theline of sight 80 passes through the rear sight 20 and across the top ofpost sight 30, and extends beyond barrel 10 of the firearm to intersectthe target 40. The rear sight 20 and front sight 30 are adjusted so thata bullet fired by the firearm with barrel 10 will travel along aGalilean trajectory (not shown) and hit the target 40 when the sightline, beginning at the pupil 75 of the person's eye 70, through theaperture 55 of the Eye Pal 50, and through the rear sight 20 and acrossthe top of the post sight 30 intersects the bulls eye 40 of target 42.

The Eye Pal 50 is a collimator, and aperture 55 in Eye Pal 50 collimatesthe light. Eye Pal 50 is made of opaque material with a hole formedtherein to form aperture 55. The opaque material stops unwanted light. Acone of light rays passing through the aperture 55 of the collimator EyePal 50 travels through lens 65 of eyeglasses (not shown in FIG. 4, butshown in FIG. 5A) so that the rays are substantially perpendicular tothe plane of the lens. Also, the cone of rays enters the eye 70 of theperson aiming the firearm with barrel 10 so that the rays impinge ononly a small number of rods and cones (not shown) in the person's retina(not shown).

Turning now to FIG. 5A, a person 500 is shown aiming rifle 510. Theperson 500 is wearing eyeglasses 520. An Eye Pal 50 is attached toeyeglasses 520, and aperture 55 is aligned with the pupil (not shown) ofthe eye (not shown) of person 500. The aperture 55 is small anddifficult to see in FIG. 5A. Eyeglasses 520 are shown as a curved styleas is commonly used in manufacture of sunglasses from a plastic materialsuch as polycarbonate.

Turning now to FIG. 6, a close up view of person 500 is shown. Aperture55 of Eye Pal 50 is more clearly visible in FIG. 6.

The Eye Pal 50 may be made by use of a mold using a liquid whichsolidifies into a static cling vinyl, by use of an injection moldingprocess. Alternatively, a sheet of static cling vinyl may be punched outto form the inventive Eye Pal 50. The Eye Pal 50 is preferably made ofopaque material so that it stops light except at the aperture 55 in theEye Pal 50. Colors of static cling vinyl of black, red, green, and bluehave all been found to be satisfactory.

Eyeglasses may be made of polycarbonate as safety glasses often are, andpolycarbonate has been found to work satisfactorily with an Eye Pal 50made of static cling vinyl. Other materials from which eyeglasses andsafety goggles are made have also been found to work satisfactorily withstatic cling vinyl. The only requirement is that the Eye Pal 50 adhereby electrostatic attraction, or by any surface attraction, to thematerial of eyeglasses worn by the person aiming the firearm. Goggles(not shown) which fit over eyeglasses may also be used with an Eye Pal50 adhered to the outer surface of the goggles.

Turning now to FIG. 7A, a target as visualized by a person is shown,where the person has impaired eyesight, and the person is sighting arifle using the invention. The invention is being used as shown in FIG.4, FIG. 5A, and FIG. 6. The target 40 is in focus and is visualized, thefront sight 30 is in focus and is visualized, and the rear sight 20 isin focus and is visualized. FIG. 7A represents a photograph taken by acamera (not shown) occupying the position of the person's eye 70, asshown in FIG. 4. The camera (not shown) photographed the view observedby the person's eye 70 along sight line 80, using the invention.

The view within the cone of light rays passing through aperture 55 isshown inside of circle 71. The view beyond outside diameter 1010 of theinventive Eye Pal 50, as shown in FIG. 9, is visualized beyond circle73, by the person aiming the firearm. The view beyond outside diameter1010, that is beyond circle 73, is not shown in FIG. 7A.

The view beyond outside diameter 1010 is a distraction to the personusing the inventive Eye Pal 50. This distracting view is reduced byplacing aperture 55 off-center in the inventive Eye Pal 50, as shown inFIG. 13 and FIG. 14 and the associated discussion herein below.

Turning now to FIG. 7B, the target and rifle sights are shown as seen bya person with near-sighted vision impairment, and without the invention.The rear sight 20 is visualized. The front sight 30 is out of focus forthe person and so is not visualized. The target 40 is out of focus, andso is not seen clearly. FIG. 7B illustrates a lack of alignment betweenrear sight 20, front sight 30, and target 40 because the personattempting to aim the firearm cannot clearly see the front sight 30 andtarget 40. The person attempting to aim the firearm will most likelymiss the target when he fires the firearm because of his visionimpairment of not being able to visualize the rear sight andsimultaneously visualize the front sight and target.

Turning now to FIG. 7C, the target and rifle sight are shown as seen bya person with far-sighted vision impairment, and without the invention.Both the rear rifle sight and the front rifle sight are out of focus,and the target is in focus. FIG. 7C illustrates an alignment between therear sight 20, the front sight 30, and the target, even though both therear sight and the front sight are poorly visualized as illustrated bythe fuzziness drawn into FIG. 7C. The alignment illustrated in FIG. 7Cis more of a chance outcome rather than an intentional outcome becausethe person cannot visualize the rear sight and front sight clearly.

Accordingly, without the invention, neither a person with near-sightedvision impairment nor far-sighted vision impairment can aim the firearm.In contrast, the invention makes it possible for both individuals withboth near-sighted vision impairment and far-sighted vision impairment toaim the firearm at the target.

Turning now to FIG. 8, a representative view of the inventive Eye Pal 50is shown with a carrying case. The carrying case is of the plastic typeused for contact lenses, and is of the type commonly sold in drugstores. Carrying case 900 has two wells 910 and 920. Well 910 has a cap912 which snaps onto well 910 to protect the Eye Pal 914 shown in well910. Well 920 also has a plastic cap 922 which snaps onto well 920 toprotect any Eye Pal carried in well 920. Eye Pal 924 is shown lying on asurface outside of carrying case 900. Aperture 55 is indicated in bothEye Pals 914, 924. Eye Pal 924 may be protected in well 920.

Turning now to FIG. 9 and FIG. 10, shop drawings of the inventive EyePal 50 are shown. FIG. 9 is a front view of the inventive Eye Pal 50,and FIG. 10 is a sectional drawing of FIG. 9, along section A-A′. EyePal 50 has an outside diameter 1010 chosen to conveniently fit oncommonly worn eyeglasses. A diameter 1010 between about three quartersinch to one inch has been found convenient. Stated in millimeters,diameters 1010 between about 15 millimeters and 25 millimeters have beenfound convenient.

As shown in FIGS. 9 and 10, aperture 55 has diameter 1020. A preferreddiameter 1020 of aperture 55 has been found to be about 45/1000 of aninch. Expressed in millimeters this diameter is about 1.1 millimeter to1.6 millimeters. This preferred range of diameter 1020 of aperture 55has been used on eyeglasses such as shown in FIG. 4, FIG. 5A and FIG. 6.

The optimum diameter 1020 of aperture 55 depends upon the mechanicalarrangement of the eyeglasses worn by the person aiming the firearm.When large safety glasses (not shown) which cover ordinary eyeglasses asshown in FIG. 4, FIG. 5A, and FIG. 6, et cet. are worn by the personaiming the firearm, the inventive Eye Pal 50 is moved further away fromthe pupil of the person's eye 70. In this case, a larger diameter 1020of aperture 55 may be used, as the solid angle subtended by aperture 55at the retina (not shown) of the person's eye 70 depends upon both thearea of aperture 55 and the square of the distance between the apertureand the person's retina. Moving the inventive Eye Pal 50 further awayfrom the retina then requires a larger diameter 1020 for aperture 55 inorder to maintain the same solid angle, as obtained by directapplication of the inventive Eye Pal 50 to ordinary vision correctingeyeglasses.

When a smaller diameter 1020 of aperture 55 is used, the imagevisualized by the person becomes “gray”. This effect is spoken of as“graying out”, and is believed to be due to diffraction of light at theaperture 55. This “graying out” is an example of optical effects beingdiffraction limited.

The preferred embodiment of the invention has been found to be adiameter 1020 of aperture 55 of about 1.1 to 1.6 millimeters, that isaround 45/1000 inch to 62/1000 of an inch. When the aperture is movedfurther away, a larger aperture is indicated, in order to maintain thesolid angle subtended by the aperture 55 at the retina of the personaiming the firearm.

The material from which the inventive Eye Pal 50 is made has been foundto be conveniently “static cling vinyl”. Static cling vinyl in sheets ofabout 0.010 inch thickness are cut into circular Eye Pals 50 of about ¾inches diameter, with about a 45/1000 inch diameter 1020 of aperture 55.Static cling vinyl is available from Grafix Plastics, Cleveland, Ohio,and from other plastics dealers.

Preferably, the inventive Eye Pal 50 is made of opaque material. Opaquematerial stops light which interferes with the cone of rays passingthrough the aperture. Only light passing through the aperture is usefulin aiming the firearm, and so blocking other light from reaching theperson's eye improves the image as the person visualizes the rear sight,front sight, and target.

The surface of the inventive Eye Pal 50 is preferably made a flat finishto reduce reflections. However, the inner surface, toward the eye of theperson aiming the firearm, may be made glossy in order to increaseadhesion to the surface of the eyeglasses by the static cling vinyl.

Turning now to FIG. 11A and FIG. 11B, an alternative embodiment of theinvention is shown. A mold is used to form by an injection moldingprocess the inventive Eye Pal 50 from a liquid static cling vinyl, andthe mold is made to leave a rounded shape to the Eye Pal 50. A steppedinner surface 1120 may be used for strength, and to reduce reflections.Dashed circular lines 1110 show ridges arising from the stepped innersurface illustrated in the sectional view of FIG. 11B. The stepped innersurface 1120 forms rings centered on aperture 55.

Reflections of light from the inner surface 1120 of Eye Pal 50 mayinterfere with visualization of the sights of the firearm andvisualization of the target. Reduction of potential reflections, bycircular anti-reflective steps in the inner surface 1120 of Eye Pal 50,improves visualization of the rear sight, front sight, and target by theperson using the Eye Pal 50.

Turning now to FIG. 12A and FIG. 12B, a further alternative embodimentof the invention is shown. The alternative embodiment of the inventionhas an optical filter 1210 is inserted in a step formed on the innerpart of the rounded shape of the Eye Pal 50. Means for attaching theoptical filter are provided by the stepped ridges 1220 formed on theinner surface 1230 of Eye Pal 50. The optical filter may be colorfilters, polarizers etc., in order to improve visualization of thetarget, the rear sight, and front sight. A standard size of opticalfilter has a diameter of about ½ inch, and the Eye Pal 50 is sized toaccept such a standard size optical filter.

Turning now to FIG. 13, an alternative embodiment of the invention isshown, where the aperture 1310 is off center from the Eye Pal 1320 andthe shape of the Eye Pal 1320 approximates a portion of a sphericalsurface. Placement of the aperture off-center improves the ability of auser to position the aperture on his eyeglasses. A larger outer diameterof the Eye Pal 1320 may be used to block stray light, and placement ofthe aperture off-center permits the aperture to be placed closer to theframe of the person's eyeglasses. A simple rotation of 180 degrees ofthe Eye Pal 1320 before attachment to the person's eyeglasses allows theinventive Eye Pal 1320 to be used by both left handed and right handedpersons.

Turning now to FIG. 14, a front view of the alternative embodiment ofEye Pal 1400 of FIG. 13 is shown. Eye Pal 1400 has aperture 1410 offcenter. The inventive Eye Pal 1400 may be either flat as shown in FIG. 9and FIG. 10, or may approximate a portion of a spherical surface asshown in FIGS. 11A, 11B, and FIGS. 12A, 12B, and FIG. 13. The markings“L” and “R” indicate either left handed or right handed use.

Turning now to FIG. 15, use of the inventive Eye Pal 50 in aiming ahandgun is shown. The person 1525 is wearing eyeglasses 1520. Eye Pal1510 is attached to lens 1512 of eyeglasses 1520 by electrostaticattraction between the static cling vinyl of the Eye Pal 1510 and thelens 1512 of eyeglasses 1520. The handgun 1528 has rear sight 1530 andfront sight 1540. The aperture 55 of the Eye Pal 1510 helps the person1525 visualize the rear sight 1530, the front sight 1540, and the target(not shown) as indicated in FIG. 4, and as shown in FIG. 7A.

Turning now to FIG. 16, a side view outline drawing of a handgun 1605 isshown. Handgun 1605 has rear sight 1610 and front sight 1620. Frontsight 1620 is a blade sight made of a thin sheet of metal. The bladeappears to the person aiming the handgun as a vertical shaft given bythe thickness of the blade. FIG. 17 gives a front view of the rear sight1610 of handgun 1605. Rear sight 1610 has triangular grove 1720 whichthe person aligns with the front sight 1620 and the target (not shown)as illustrated in FIG. 4. The inventive Eye Pal 50 helps the personaiming the handgun to simultaneously visualize the rear sight, the frontsight and the target, as illustrated in FIG. 7A.

The foregoing description has been directed to particular embodiments ofthis invention. It will be apparent, however, that other variations andmodifications may be made to the described embodiments, with theattainment of some or all of their advantages. Therefore, it is theobject of the appended claims to cover all such variations andmodifications as come within the true spirit and scope of the invention.

What is claimed is:
 1. An apparatus to improve vision, comprising: acollimator of static cling vinyl, the static cling vinyl havingelectrostatic attraction to a lens of eyeglasses, the attractionsufficient to attach the static cling vinyl to the lens, the lens havinga length and a width, the collimator made of opaque material and thecollimator having an aperture formed as a hole in a flat circle of theopaque material, the circle of opaque material having a diameter, andthe diameter being less than the length and the diameter being less thanthe width of the lens of the eyeglasses, the aperture limiting lightilluminating a retina of a person who wears the eyeglasses to a cone ofrays passing through the aperture and around an outside of the circle ofthe opaque material.
 2. The apparatus as in claim 1, further comprising:the eyeglasses are vision correction glasses.
 3. The apparatus as inclaim 1, further comprising: the eyeglasses are prescription safetyeyeglasses.
 4. The apparatus as in claim 1, further comprising: theeyeglasses are bifocals with visible lines between different radiiground into the glasses.
 5. The apparatus as in claim 1, furthercomprising: the eyeglasses are safety glasses.
 6. The apparatus as inclaim 1, further comprising: the eyeglasses are sunglasses.
 7. Theinvention as in claim 1, further comprising: the hole forming theaperture is located at a center of the circle of opaque material.
 8. Theinvention as in claim 1, further comprising: the eyeglasses are to beworn by a person.
 9. An apparatus to improve vision, comprising: acollimator of static cling vinyl, the static cling vinyl havingelectrostatic attraction to a lens of eyeglasses, the attractionsufficient to attach the static cling vinyl to the lens, the lens havinga length and a width, the collimator made of opaque material, and thecollimator having an aperture formed as a hole in a flat circle of theopaque material, the circle of opaque material having a diameter, andthe diameter being less than the length and the diameter being less thanthe width of the lens of the eyeglasses, the eyeglasses to be worn by aperson, the aperture limiting light illuminating a retina of a personwho wears the eyeglasses to a cone of rays passing through the apertureand around an outside of the circle of the opaque material, and theperson wearing the eyeglasses to generate a sight line from an eye ofthe person through the aperture of the collimator and to an object whichit is desired to visualize, the collimator optically clearing the visionof the eye of the person to aid in the person's visualization of theobject.
 10. The invention as in claim 9, further comprising: a rearsight and a front sight and a target of a firearm are simultaneouslyvisualized through the aperture.
 11. The invention as in claim 9,further comprising: the hole forming the aperture is located at a centerof the circle of opaque material.
 12. The apparatus as in claim 9,further comprising: the eyeglasses are vision correction glasses. 13.The apparatus as in claim 9, further comprising: the eyeglasses areprescription safety eyeglasses.
 14. The apparatus as in claim 9, furthercomprising: the eyeglasses are bifocals with visible lines betweendifferent radii ground into the glasses.
 15. The apparatus as in claim9, further comprising: the eyeglasses are safety glasses.
 16. Theapparatus as in claim 9, further comprising: the eyeglasses aresunglasses.
 17. An apparatus to improve vision, comprising: a collimatorof static cling vinyl, the static cling vinyl having electrostaticattraction to a lens of eyeglasses, the attraction sufficient to attachthe static cling vinyl to the lens, the lens having a length and awidth, the collimator made of opaque material and the collimator havingan aperture formed as a hole in a flat circle of the opaque material,the opaque material having a diameter and the diameter being less thanthe length and the diameter being less than the width of the lens of theeyeglasses, the aperture limiting light illuminating a retina of aperson who wears the eyeglasses to a cone of rays passing through theaperture and around an outside of the circle of the opaque material; andthe person wearing the eyeglasses to generate a sight line from an eyeof the person through the aperture of the collimator and through a rearsight of an open sight and across a front sight of the open sight and toa target, the aperture of the collimator optically clearing the visionof the eye of the person to aid in the person's simultaneousvisualization of the rear sight, the front sight, and the target. 18.The invention as in claim 17, further comprising: the hole forming theaperture is located at a center of the circle of opaque material. 19.The apparatus as in claim 17, further comprising: a firearm where therear sight and the front sight are attached to the firearm.
 20. Theinvention as in claim 19, further comprising: the firearm is a rifle.21. The invention as in claim 19, further comprising: the firearm is ahandgun.